Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!elroy.jpl.nasa.gov!swrinde!zaphod.mps.ohio-state.edu!rpi!uupsi!njin!njitgw!mars.njit.edu!cd5340 From: cd5340@mars.njit.edu (Charlap) Newsgroups: comp.os.msdos.programmer Subject: Re: Reading MS Serial Mouse Directly. How? Message-ID: <2211@njitgw.njit.edu> Date: 2 Feb 91 00:28:58 GMT References: <11609@ucrmath.ucr.edu> Sender: news@njitgw.njit.edu Organization: New Jersey Institute of Technology Lines: 12 In article <11609@ucrmath.ucr.edu> lulu@ucrmath.ucr.edu (david lu) writes: >One of the labs that we thought would be fun to do is >to have the students write an assembly program that reads the >mouse directly from the serial port, bypassing the device >drivers. But.... Why do you want to do this. You realize that by bypassing the MOUSE.COM program, you render your program incompatible with any mouse that isn't MS compatible. For instance, my Genius mouse, or my roommate's Mouse Systems mouse wouldn't work that way, since they are only compatible with the mouse interrupt, not with the serial port signals. Also, a bus mouse wouldn't work with your scheme.